diff options
Diffstat (limited to 'tests/auto/qwritelocker/tst_qwritelocker.cpp')
| -rw-r--r-- | tests/auto/qwritelocker/tst_qwritelocker.cpp | 235 |
1 files changed, 235 insertions, 0 deletions
diff --git a/tests/auto/qwritelocker/tst_qwritelocker.cpp b/tests/auto/qwritelocker/tst_qwritelocker.cpp new file mode 100644 index 0000000..21bfa8a --- /dev/null +++ b/tests/auto/qwritelocker/tst_qwritelocker.cpp @@ -0,0 +1,235 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the test suite of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + + +#include <QtTest/QtTest> + +#include <QCoreApplication> +#include <QWriteLocker> +#include <QSemaphore> +#include <QThread> + +//TESTED_CLASS= +//TESTED_FILES= + +class tst_QWriteLockerThread : public QThread +{ +public: + QReadWriteLock lock; + QSemaphore semaphore, testSemaphore; + + void waitForTest() + { + semaphore.release(); + testSemaphore.acquire(); + } +}; + +class tst_QWriteLocker : public QObject +{ + Q_OBJECT + +public: + tst_QWriteLocker(); + ~tst_QWriteLocker(); + + tst_QWriteLockerThread *thread; + + void waitForThread() + { + thread->semaphore.acquire(); + } + void releaseThread() + { + thread->testSemaphore.release(); + } + +private slots: + void scopeTest(); + void unlockAndRelockTest(); + void lockerStateTest(); +}; + +tst_QWriteLocker::tst_QWriteLocker() +{ +} + +tst_QWriteLocker::~tst_QWriteLocker() +{ +} + +void tst_QWriteLocker::scopeTest() +{ + class ScopeTestThread : public tst_QWriteLockerThread + { + public: + void run() + { + waitForTest(); + + { + QWriteLocker locker(&lock); + waitForTest(); + } + + waitForTest(); + } + }; + + thread = new ScopeTestThread; + thread->start(); + + waitForThread(); + // lock should be unlocked before entering the scope that creates the QWriteLocker + QVERIFY(thread->lock.tryLockForWrite()); + thread->lock.unlock(); + releaseThread(); + + waitForThread(); + // lock should be locked by the QWriteLocker + QVERIFY(!thread->lock.tryLockForWrite()); + releaseThread(); + + waitForThread(); + // lock should be unlocked when the QWriteLocker goes out of scope + QVERIFY(thread->lock.tryLockForWrite()); + thread->lock.unlock(); + releaseThread(); + + QVERIFY(thread->wait()); + + delete thread; + thread = 0; +} + + +void tst_QWriteLocker::unlockAndRelockTest() +{ + class UnlockAndRelockThread : public tst_QWriteLockerThread + { + public: + void run() + { + QWriteLocker locker(&lock); + + waitForTest(); + + locker.unlock(); + + waitForTest(); + + locker.relock(); + + waitForTest(); + } + }; + + thread = new UnlockAndRelockThread; + thread->start(); + + waitForThread(); + // lock should be locked by the QWriteLocker + QVERIFY(!thread->lock.tryLockForWrite()); + releaseThread(); + + waitForThread(); + // lock has been explicitly unlocked via QWriteLocker + QVERIFY(thread->lock.tryLockForWrite()); + thread->lock.unlock(); + releaseThread(); + + waitForThread(); + // lock has been explicity relocked via QWriteLocker + QVERIFY(!thread->lock.tryLockForWrite()); + releaseThread(); + + QVERIFY(thread->wait()); + + delete thread; + thread = 0; +} + +void tst_QWriteLocker::lockerStateTest() +{ +#if QT_VERSION < 0x040200 + QSKIP("QWriteLocker doesn't keep state in Qt < 4.2", SkipAll); +#else + class LockerStateThread : public tst_QWriteLockerThread + { + public: + void run() + { + { + QWriteLocker locker(&lock); + locker.relock(); + locker.unlock(); + + waitForTest(); + } + + waitForTest(); + } + }; + + thread = new LockerStateThread; + thread->start(); + + waitForThread(); + // even though we relock() after creating the QWriteLocker, it shouldn't lock the lock more than once + QVERIFY(thread->lock.tryLockForWrite()); + thread->lock.unlock(); + releaseThread(); + + waitForThread(); + // if we call QWriteLocker::unlock(), its destructor should do nothing + QVERIFY(thread->lock.tryLockForWrite()); + thread->lock.unlock(); + releaseThread(); + + QVERIFY(thread->wait()); + + delete thread; + thread = 0; +#endif +} + +QTEST_MAIN(tst_QWriteLocker) +#include "tst_qwritelocker.moc" |